Off-gassing refers to the release of gases from new mattresses, which can happen when they are unboxed. This is a normal process and usually involves a temporary smell that fades over time as the mattress airs out.
When you buy a new mattress and notice a slight chemical smell after unpacking it, that's off-gassing.
Symptoms of off-gassing can include headaches, dizziness, nausea, and irritation of the eyes, throat, or respiratory system, particularly in sensitive individuals.
Off-gassing typically lasts a few days to a couple of weeks, but some low-level emissions can persist for months, especially with synthetic materials.
Outgassing refers to the release of volatile organic compounds (VOCs) from materials, similar to off-gassing, and can occur in various products, including mattresses.
For most people, mattress off-gassing is not harmful, as the levels of VOCs are generally below those considered dangerous; however, individuals with sensitivities may experience discomfort.
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